<!--
 * @Author: Tina Huang
 * @Date: 2022-12-10 21:42:42
 * @LastEditors: Tina Huang
 * @LastEditTime: 2022-12-30 15:05:24
 * @Description: 
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: rgba(0, 5, 24, 1);
        }
        
        .city {
            width: 100%;
            position: fixed;
            bottom: 0px;
            z-index: 100;
            z-index: 10;
        }
        
        .city img {
            width: 100%;
        }
        
        #labels,
        #extra {
            /* color: rgb(106, 17, 11); */
            color: #daf6ff;
            text-shadow: 0 0 20px #0aafe6, 0 0 20px rgba(10, 175, 230, 0);
            font-weight: bold;
            font-size: 3.8rem;
            position: fixed;
            width: 100vw;
            text-align: center;
            opacity: 0;
            transition: all 0.5s ease-in-out;
            z-index: 100;
            top: 30%;
        }
        
        #labels.hide {
            opacity: 0;
            transform: scale(1);
        }
        
        #labels.show,
        #extra.show {
            opacity: 1;
            z-index: 100;
            transform: scale(1.3);
        }
    </style>
    <title>Happy New Year</title>
    <mate name="vievpot" content="width=device-width,height=device-height inital-scale=1.0,maximum-scale=1.0 , user-scale=no. ">
        <mate name="apple-moblie-web-app-capable" content="yes">
            <mate name="apple-moblie-web-app-status-bar-style" content="black">
                <mate name="format-detection" content="telephone=no">
</head>

<body onselectstart="return false">
    <canvas id="cas">浏览器不支持canvas</canvas>
    <div id="labels"></div>
    <div class="city"><img src="../images/city_2.png" alt="" /></div>
    <img src="../images/moon.png" alt="" id="moon" style="visibility: hidden" />
    <div id="labels"></div>

    <script>
        let __audio = document.createElement("audio");
        // ❤️ 修改音乐在这里
        __audio.src = "http://music.163.com/song/media/outer/url?id=28828078.mp3";
        __audio.loop = true;
        __audio.volume = 0.6;
        window.onclick = function() {
            __audio.play();
        };
    </script>
    <script>
        let starCount = 1500;
        let starArr = new Array();

        // 💗 ‼️ ‼️ 想要说的话在这里 💗
        const my_labels = [
            "祝小敬敬(*^▽^*)",
            "2024元旦快乐",
            "新的一年也要发光发热哟~",
            "健健康康，平安喜乐（づ￣3￣）づ╭❤～",
        ];
        const shapes = [
            // "img$http://www.html5tricks.com/wp-content/uploads/2015/03/html5-canvas-drag-tree.png"
        ];
        let canvas = document.getElementById("cas");
        let ocas = document.createElement("canvas");
        let octx = ocas.getContext("2d");
        let ctx = canvas.getContext("2d");
        ocas.width = canvas.width = window.innerWidth;
        ocas.height = canvas.height = window.innerHeight;
        let bigbooms = [];

        window.onload = function() {
            initAnimate();

            const labels = document.getElementById("labels");
            for (let i = 0; i < my_labels.length; i++) {
                setTimeout(() => {
                    // labels.className = "hide";
                    labels.innerHTML = my_labels[i];
                    labels.className = "show";
                    if (i < my_labels.length - 1) {
                        setTimeout(() => {
                            labels.className = "hide";
                        }, 3000);
                    }
                }, 3500 * (i + 1));
            }

            for (let i = 0; i < starCount; i++) {
                let star = new StarMore();
                star.randomColor();
                starArr.push(star);
            }

            showStars();
        };

        function initAnimate() {
            drawBg();

            lastTime = new Date();
            animate();
        }

        let lastTime;

        function animate() {
            ctx.save();
            ctx.globalCompositeOperation = "destination-out";
            ctx.globalAlpha = 0.1;
            ctx.fillRect(0, 0, canvas.width, canvas.height);
            ctx.restore();

            let newTime = new Date();
            if (newTime - lastTime > 200 + (window.innerHeight - 767) / 2) {
                let random = Math.random() * 100 > 2 ? true : false;
                let x = getRandom(canvas.width / 5, (canvas.width * 4) / 5);
                let y = getRandom(50, 200);
                if (random) {
                    let bigboom = new Boom(
                        getRandom(canvas.width / 3, (canvas.width * 2) / 3),
                        2,
                        "#FFF", {
                            x: x,
                            y: y
                        }
                    );
                    bigbooms.push(bigboom);
                } else {
                    let bigboom = new Boom(
                        getRandom(canvas.width / 3, (canvas.width * 2) / 3),
                        2,
                        "#FFF", {
                            x: canvas.width / 2,
                            y: 200,
                        },
                        shapes[parseInt(getRandom(0, shapes.length))]
                    );
                    bigbooms.push(bigboom);
                }
                lastTime = newTime;
            }

            stars.foreach(function() {
                this.paint();
            });

            drawMoon();

            bigbooms.foreach(function(index) {
                let that = this;
                if (!this.dead) {
                    this._move();
                    this._drawLight();
                } else {
                    this.booms.foreach(function(index) {
                        if (!this.dead) {
                            this.moveTo(index);
                        } else if (index === that.booms.length - 1) {
                            bigbooms.splice(bigbooms.indexOf(that), 1);
                        }
                    });
                }
            });

            raf(animate);
        }

        function drawMoon() {
            let moon = document.getElementById("moon");
            let centerX = canvas.width - 200,
                centerY = 100,
                width = 80;
            if (moon.complete) {
                ctx.drawImage(moon, centerX, centerY, width, width);
            } else {
                moon.onload = function() {
                    ctx.drawImage(moon, centerX, centerY, width, width);
                };
            }
            let index = 0;
            for (let i = 0; i < 10; i++) {
                ctx.save();
                ctx.beginPath();
                ctx.arc(
                    centerX + width / 2,
                    centerY + width / 2,
                    width / 2 + index,
                    0,
                    2 * Math.PI
                );
                ctx.fillStyle = "rgba(240,219,120,0.005)";
                index += 2;
                ctx.fill();
                ctx.restore();
            }
        }

        Array.prototype.foreach = function(callback) {
            for (let i = 0; i < this.length; i++) {
                if (this[i] !== null) callback.apply(this[i], [i]);
            }
        };

        let raf =
            window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            function(callback) {
                window.setTimeout(callback, 1000 / 10);
            };

        canvas.onclick = function() {
            let x = event.clientX;
            let y = event.clientY;
            let bigboom = new Boom(
                getRandom(canvas.width / 3, (canvas.width * 2) / 3),
                2,
                "#FFF", {
                    x: x,
                    y: y
                }
            );
            bigbooms.push(bigboom);
        };

        let Boom = function(x, r, c, boomArea, shape) {
            this.booms = [];
            this.x = x;
            this.y = canvas.height + r;
            this.r = r;
            this.c = c;
            this.shape = shape || false;
            this.boomArea = boomArea;
            this.theta = 0;
            this.dead = false;
            this.ba = parseInt(getRandom(80, 200));

            let audio = document.getElementsByTagName("audio");
            for (let i = 0; i < audio.length; i++) {
                if (
                    audio[i].src.indexOf("shotfire") >= 0 &&
                    (audio[i].paused || audio[i].ended)
                ) {
                    // audio[i].play();
                    break;
                }
            }
        };
        Boom.prototype = {
            _paint: function() {
                ctx.save();
                ctx.beginPath();
                ctx.arc(this.x, this.y, this.r, 0, 2 * Math.PI);
                ctx.fillStyle = this.c;
                ctx.fill();
                ctx.restore();
            },
            _move: function() {
                let dx = this.boomArea.x - this.x,
                    dy = this.boomArea.y - this.y;
                this.x = this.x + dx * 0.01;
                this.y = this.y + dy * 0.01;

                if (Math.abs(dx) <= this.ba && Math.abs(dy) <= this.ba) {
                    if (this.shape) {
                        this._shapBoom();
                    } else this._boom();
                    this.dead = true;
                } else {
                    this._paint();
                }
            },
            _drawLight: function() {
                ctx.save();
                ctx.fillStyle = "rgba(255,228,150,0.3)";
                ctx.beginPath();
                ctx.arc(
                    this.x,
                    this.y,
                    this.r + 3 * Math.random() + 1,
                    0,
                    2 * Math.PI
                );
                ctx.fill();
                ctx.restore();
            },
            _boom: function() {
                let fragNum = getRandom(100, 300);
                let style = getRandom(0, 10) >= 5 ? 1 : 2;
                let color;
                if (style === 1) {
                    color = {
                        a: parseInt(getRandom(128, 255)),
                        b: parseInt(getRandom(128, 255)),
                        c: parseInt(getRandom(128, 255)),
                    };
                }

                let fanwei = fragNum;
                let audio = document.getElementsByTagName("audio");
                for (let i = 0; i < audio.length; i++) {
                    if (
                        audio[i].src.indexOf("boom") >= 0 &&
                        (audio[i].paused || audio[i].ended)
                    ) {
                        // audio[i].play();
                        break;
                    }
                }
                for (let i = 0; i < fragNum; i++) {
                    if (style === 2) {
                        color = {
                            a: parseInt(getRandom(128, 255)),
                            b: parseInt(getRandom(128, 255)),
                            c: parseInt(getRandom(128, 255)),
                        };
                    }
                    let a = getRandom(-Math.PI, Math.PI);
                    let x = getRandom(0, fanwei) * Math.cos(a) + this.x;
                    let y = getRandom(0, fanwei) * Math.sin(a) + this.y;
                    let radius = getRandom(0, 2);
                    let frag = new Frag(this.x, this.y, radius, color, x, y);
                    this.booms.push(frag);
                }
            },
            _shapBoom: function() {
                let that = this;
                putValue(ocas, octx, this.shape, 5, function(dots) {
                    let dx = canvas.width / 2 - that.x;
                    let dy = canvas.height / 2 - that.y;
                    for (let i = 0; i < dots.length; i++) {
                        color = {
                            a: dots[i].a,
                            b: dots[i].b,
                            c: dots[i].c
                        };
                        let x = dots[i].x;
                        let y = dots[i].y;
                        let radius = 1;
                        let frag = new Frag(
                            that.x,
                            that.y,
                            radius,
                            color,
                            x - dx,
                            y - dy
                        );
                        that.booms.push(frag);
                    }
                });
            },
        };

        function putValue(canvas, context, ele, dr, callback) {
            context.clearRect(0, 0, canvas.width, canvas.height);
            let img = new Image();
            if (ele.indexOf("img") >= 0) {
                let _src = ele.split("$")[1];
                img.src = _src;
                imgload(img, function() {
                    context.drawImage(
                        img,
                        canvas.width / 2 - img.width / 2,
                        canvas.height / 2 - img.width / 2
                    );
                    console.log("dots");
                    dots = getimgData(canvas, context, dr);
                    callback(dots);
                });
            } else {
                let text = ele;
                context.save();
                let fontSize = 128;
                context.font = fontSize + "px 宋体 bold";
                context.textAlign = "center";
                context.textBaseline = "middle";
                context.fillStyle =
                    "rgba(" +
                    parseInt(getRandom(128, 255)) +
                    "," +
                    parseInt(getRandom(128, 255)) +
                    "," +
                    parseInt(getRandom(128, 255)) +
                    " , 1)";
                context.fillText(text, canvas.width / 2, canvas.height / 2);
                context.restore();
                dots = getimgData(canvas, context, dr);
                callback(dots);
            }
        }

        function imgload(img, callback) {
            if (img.complete) {
                callback.call(img);
            } else {
                img.onload = function() {
                    callback.call(this);
                };
            }
        }

        function getimgData(canvas, context, dr) {
            let imgData = context.getImageData(0, 0, canvas.width, canvas.height);
            context.clearRect(0, 0, canvas.width, canvas.height);
            let dots = [];
            for (let x = 0; x < imgData.width; x += dr) {
                for (let y = 0; y < imgData.height; y += dr) {
                    let i = (y * imgData.width + x) * 4;
                    if (imgData.data[i + 3] > 128) {
                        let dot = {
                            x: x,
                            y: y,
                            a: imgData.data[i],
                            b: imgData.data[i + 1],
                            c: imgData.data[i + 2],
                        };
                        dots.push(dot);
                    }
                }
            }
            return dots;
        }

        function getRandom(a, b) {
            return Math.random() * (b - a) + a;
        }

        let maxRadius = 1,
            stars = [];

        function drawBg() {
            for (let i = 0; i < 100; i++) {
                let r = Math.random() * maxRadius;
                let x = Math.random() * canvas.width;
                let y = Math.random() * 2 * canvas.height - canvas.height;
                let star = new Star(x, y, r);
                stars.push(star);
                star.paint();
            }
        }

        let Star = function(x, y, r) {
            this.x = x;
            this.y = y;
            this.r = r;
        };
        Star.prototype = {
            paint: function() {
                ctx.save();
                ctx.beginPath();
                ctx.arc(this.x, this.y, this.r, 0, 2 * Math.PI);
                ctx.fillStyle = "rgba(255,255,255," + this.r + ")";
                ctx.fill();
                ctx.restore();
            },
        };

        let focallength = 250;
        let Frag = function(centerX, centerY, radius, color, tx, ty) {
            this.tx = tx;
            this.ty = ty;
            this.x = centerX;
            this.y = centerY;
            this.dead = false;
            this.centerX = centerX;
            this.centerY = centerY;
            this.radius = radius;
            this.color = color;
        };

        Frag.prototype = {
            paint: function() {
                // ctx.beginPath();
                // ctx.arc(this.x , this.y , this.radius , 0 , 2*Math.PI);
                ctx.fillStyle =
                    "rgba(" +
                    this.color.a +
                    "," +
                    this.color.b +
                    "," +
                    this.color.c +
                    ",1)";
                ctx.fillRect(
                    this.x - this.radius,
                    this.y - this.radius,
                    this.radius * 2,
                    this.radius * 2
                );
            },
            moveTo: function(index) {
                this.ty = this.ty + 0.3;
                let dx = this.tx - this.x,
                    dy = this.ty - this.y;
                this.x = Math.abs(dx) < 0.1 ? this.tx : this.x + dx * 0.1;
                this.y = Math.abs(dy) < 0.1 ? this.ty : this.y + dy * 0.1;
                if (dx === 0 && Math.abs(dy) <= 80) {
                    this.dead = true;
                }
                this.paint();
            },
        };

        let StarMore = function() {
            this.x = window.innerWidth * Math.random();
            this.y = 5000 * Math.random();
            this.text = ".";
            this.color = "white";
            this.randomColor = function() {
                let _r = Math.random();
                if (_r < 0.5) {
                    this.color = "#333";
                } else {
                    this.color = "white";
                }
            };
        };

        function showStars() {
            let canvas = document.getElementById("cas");
            context = canvas.getContext("2d");

            for (let n = 0; n < starCount; n++) {
                starArr[n].randomColor();
                context.fillStyle = starArr[n].color;
                context.fillText(starArr[n].text, starArr[n].x, starArr[n].y);
            }

            setTimeout("showStars()", 100);
        }

        // 代码参考来源：https://github.com/AndersonHJB/YearTiger2022
    </script>
</body>

</html>